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authormirabilos <tg@mirbsd.org>2015-07-24 22:18:07 +0200
committerWaldemar Brodkorb <wbx@uclibc-ng.org>2015-08-02 10:44:01 +0200
commitfb1802d9b238ecb7066ab0867d8c4c3c3acefaea (patch)
treef8aebf437a6e06529b80a29683a60a477623cbf0 /libc
parentd8e6976a83cdd0ecac260de3afcb1973db8dffb0 (diff)
integrate old m68k vfork bugfix of pre-µClibc-ng tree
Diffstat (limited to 'libc')
-rw-r--r--libc/sysdeps/linux/m68k/vfork.S19
1 files changed, 11 insertions, 8 deletions
diff --git a/libc/sysdeps/linux/m68k/vfork.S b/libc/sysdeps/linux/m68k/vfork.S
index b2fe03377..bde9d5a3a 100644
--- a/libc/sysdeps/linux/m68k/vfork.S
+++ b/libc/sysdeps/linux/m68k/vfork.S
@@ -22,20 +22,23 @@ __vfork:
movl %sp@+, %a1 /* save the return address for later */
movl IMM __NR_vfork,%d0
trap #0
- movl IMM -4097, %d1
- cmpl %d0, %d1
- bcs fix_errno
- jmp %a1@ /* don't return, just jmp directly */
-fix_errno:
- negl %d0
+ movl %a1, -(%sp)
+
+ cmpil #-4096,%d0
+ blss 1f
+
+ neg.l %d0
#ifndef __PIC__ /* needs handling as the other archs */
movl errno, %a0
#else
movl errno@GOT(%a5), %a0
#endif
movl %d0, %a0@
- movl IMM -1, %d0
- jmp %a1@ /* don't return, just jmp directly */
+ move.l #-1, %d0
+
+1:
+ move.l %d0, %a0
+ rts
.size __vfork,.-__vfork
weak_alias(__vfork,vfork)